Gov-loc, you will see the clutches showing through on the side of the carrier, it also has 3 spider gears so the crossshaft only has 3 legs, which you would see between the carrier, where the 2 halfs meet, around the ring gear, if its open or has a Detroit, there will be 4 legs. Also if it has a Detroit, look at the carrier on the side youll see a spring, if its open, youll just see the side gear. As for the posi trak, there isnt one. /forums/images/graemlins/thumb.gif

There is no such thing as "posi-track" for the 14FF. Gov-lock and posi-track are often the same term for the other. When you get to younger kids who always talk about how their rig has posi front and rear, their term is generally "posi-track." The guy who knows a little more about his rearend will know they are Gov-locks for the GM axles.

But like stated above, 3 pin spider gears are the Gov-lock and 4 pin spiders are open differentials which are what you need to upgrade to the Detroit Locker or other types of traction adding devices. /forums/images/graemlins/wink.gif

Useful Searches

>
About Us>
>
In May of 1999 CK5 started out as a tribute to America's favorite 4x4 utility truck. Since then it has grown to be
a leader among full size Chevrolet K5 Blazer and GMC Jimmy web sites across the Internet. CK5 has since expanded
to include the C/K series GM Truck and Suburban as well as past and present GM models.
>>
With its technical articles, factory specifications, photo gallery, classifieds, active message forum, product
reviews and original automotive content it's an unbeatable source.